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Chen Wei - - 2014
Percutaneous lag screw fixation is an alternative treatment for non-displaced or minimally displaced posterior column fractures. This study aims to explore new fluoroscopic views of the acetabulum for safe percutaneous insertion of posterior column lag screws. Axial computed tomography (CT) scans were taken of sixteen embalmed adult cadavers. The axial ...
Van Goethem Gert G Department of Neurology, University Hospital of Antwerpen (UZA), Antwerpen, - - 2014
Beta-propeller protein-associated neurodegeneration is a newly described X-linked dominant condition due to heterozygous mutations in WDR45. The condition is associated with characteristic changes on brain magnetic resonance imaging. Previous literature relating to this disorder has not specifically referred to intracranial calcification. A female patient presented with significant developmental delay in ...
Oliveira Cintia R CR School of Veterinary Medicine, Department of Surgical Sciences, University of Wisconsin-Madison, Madison, WI, - - 2014
Respiratory-induced organ displacement during image acquisition can produce motion artifacts and variation in spatial localization of an organ in diagnostic computed tomography (CT) examinations. The purpose of this prospective study was to quantify respiratory-induced abdominal organ displacement in dorsal and ventral recumbency using five normal dogs. All dogs underwent CT ...
Glynne-Jones Robert - - 2014
Fluoropyrimidine-based chemoradiation (CRT) is used routinely for locally advanced rectal cancer to shrink the tumor preoperatively, improve lateral surgical clearance at total mesorectal excision, prevent local recurrence, and preserve organ function. In Northern Europe, short-course preoperative radiotherapy (SCPRT) is preferred to achieve locoregional control. However, with recent improvements in the ...
Grözinger G - - 2014
The review discusses the potential role of volume perfusion CT (VPCT) in the diagnosis and follow-up of different pathologies of the pancreas. VPCT enables a differentiation of different pancreatic tumors like adenocarcinoma or neuroendocrine tumors based on functional parameters like blood flow, blood volume and permeability. Furthermore, the article discusses ...
Bruguier C C University Center of Legal Medicine, Lausanne-Geneva, University of Lausanne, Rue du Bugnon 21, 1011, Lausanne, Switzerland, - - 2014
Postmortem MRI (PMMR) examinations are seldom performed in legal medicine due to long examination times, unfamiliarity with the technique, and high costs. Furthermore, it is difficult to obtain access to an MRI device used for patients in clinical settings to image an entire human body. An alternative is available: ex ...
Lasocki A A From the Department of Cancer Imaging (A.L.), Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia; Departments of Pathology (A.T.), Neurosurgery (K.J.D.), Medical Oncology (K.M.F.), and Radiology (F.G.), The Royal Melbourne Hospital, Parkville, Victoria, Australia; and Melbourne EpiCentre (M.A.T.), Department of Medicine, The University of Melbourne and The Royal Melbourne Hospital, Parkville, Victoria, Australia. - - 2014
Histologic grading of intracranial astrocytomas is affected by sampling error and substantial inter- and intraobserver variability. We proposed that incorporating MR imaging into grading will predict patient survival more accurately than histopathology alone. Patients with a new diagnosis of World Health Organization grades II-IV astrocytoma or mixed oligoastrocytoma diagnosed between ...
Ibrahim George M GM 1 Division of Neurosurgery, Hospital for Sick Children, Department of Surgery, University of Toronto, Toronto, Ontario, Canada2 Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada - - 2014
The effects of interictal epileptiform discharges on neurocognitive development in children with medically-intractable epilepsy are poorly understood. Such discharges may have a deleterious effect on the brain's intrinsic connectivity networks, which reflect the organization of functional networks at rest, and in turn on neurocognitive development. Using a combined functional magnetic ...
Genovesi Domenico D Department of Radiation Oncology, "G. D'Annunzio" University of Chieti, SS. Annunziata Hospital, Chieti, Italy, - - 2014
Sparing of the organs at risk is one of the primary end-points of radiotherapy. The effects of organ-at-risk delineation on the dosimetric parameters can be critical and can influence treatment planning and outcomes. The aim of our study was to provide anatomical boundaries for the identification and delineation of the ...
Jodorkovsky Daniela D Division of Gastroenterology and Hepatology, The Johns Hopkins University School of Medicine, Baltimore, MD, - - 2014
Dynamic pelvic MRI (DP-MRI) offers a comprehensive evaluation of pelvic organ structure in addition to functional information regarding evacuation. Application of this technology can be limited due to regional availability. Ideally, clues from standard anorectal testing could predict abnormalities on DP-MRI leading to its efficient use. The aim of this ...
Gear J I JI Joint Department of Physics, The Royal Marsden NHS Foundation Trust and Institute of Cancer Research, Sutton, Surrey SM2 5TL, United - - 2014
The aim of the study was to investigate rapid prototyping technology for the production of patient-specific, cost-effective liquid fillable phantoms directly from patient CT data. Liver, spleen, and kidney volumes were segmented from patient CT data. Each organ was converted to a shell and filling holes and leg supports were ...
Li Xiang X Medical Physics Graduate Program, Department of Physics, Cleveland State University, Cleveland, Ohio 44115, - - 2014
Body CT scans are routinely performed using tube-current-modulation (TCM) technology. There is notable variability across CT manufacturers in terms of how TCM technology is implemented. Some manufacturers aim to provide uniform image noise across body regions and patient sizes, whereas others aim to provide lower noise for smaller patients. The ...
Budán Ferenc F CROmed, Translational Research Centers, Budapest, Baross utca, - - 2014
Earthworm (Oligochaeta, Lumbricidae) species are used widely in eco-toxicological tests especially with contaminated soils. These long-term tests are reliable, but a high sample size is needed. Magnetic resonance imaging (MRI) can produce fast, robust, sensitive, and longitudinal morphological results using a small sample size. Performing longitudinal in vivo examinations of ...
Kim J J Department of Chemistry, Research Institute for Natural Sciences, Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-Ro, Seongdong-Gu, Seoul, 133-791 Korea. - - 2014
The strain-induced cracks in organic microtubules composed of an organic charge transfer (CT) complex of 1,2,4,5-tetracyanobenzene (TCNB) and naphthalene were selectively welded via the formation of secondary CT complexes; this process, in turn, led to the formation of organic hetero-microtubules consisting of multiple segments of two organic CT complexes.
Hur Joonho J Department of Radiology, Chung-Ang University College of Medicine, Seoul, Republic of - - 2014
Sinonasal organized hematoma is a rare benign disease that may be mistaken for malignancy. To define the imaging characteristics of sinonasal organized hematoma. We retrospectively reviewed computed tomography (CT) images of eight patients (4 male patients, 4 female patients; mean age, 40 years; range, 9-83 years) with pathologically proven sinonasal ...
Simha Vijai V Department of Radiotherapy and Oncology, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India. Electronic address: - - 2014
To assess the variation in the doses received by the organs at risk (OARs) that can occur during treatment planning of cervical cancer by image-based brachytherapy. After intracavitary application, two sets of images-CT and MRI-were obtained. The two sets of images were fused together with respect to the applicator. Contouring ...
Azzedine Benaissa B Pôle d'imagerie, Hôpital Robert Debré, Service de radiologie, CHU de Reims. Electronic address: - - 2014
To compare 3T and 1.5T Whole Body Diffusion Weighted MRI (WB-DW-MRI) in patients at initial diagnosis of lymphoma. Twenty-three patients were included. We performed a 3.0T and 1.5T WB-DW-MRI with 18 F-Fluoride Positron Emission Tomography Computed Tomography (PET-CT) as the reference standard. Image quality, lymph node, organ involvement, and Ann ...
Absinta Martina M From the Translational Neuroradiology Unit (MA, GN, DSR) and Surgical Neurology Branch (AR-C), National Institute of Neurological Disorders and Stroke, National Institutes of Health; and Department of Neurology, Johns Hopkins School of Medicine (MIR-M, CAP, DSR), Baltimore, Maryland; and Neuroimaging Research Unit, Institute of Experimental Neurology, Division of Neuroscience, San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy (MA, - - 2014
Interfacing magnetic resonance imaging (MRI) with pathology is critically important for understanding the pathologic basis of MRI signal changes in vivo and for clinicopathologic correlations. Postmortem MRI is an intermediate step in this process; unfortunately, however, relating the data to standard pathologic sections, which are relatively thick and often nonparallel, ...
Yiallouras C C Department of Bioengineering, City University, London, UK; R&D, MEDSONIC LTD, Limassol, - - 2014
This article contains a review of positioning devices that are currently used in the area of magnetic resonance imaging (MRI) guided focused ultrasound surgery (MRgFUS). The paper includes an extensive review of literature published since the first prototype system was invented in 1991. The technology has grown into a fast ...
Toro Adriana A Department of Surgery, Taormina Hospital, Messina, - - 2014
Hepatic cavernous hemangioma accounts for 73% of all benign liver tumors with a frequency of 0.4-7.3% at autopsy and is the second most common tumor seen in the liver after metastases. Patients affected by hemangioma usually have their tumor diagnosed by ultrasound abdominal examination for a not well defined pain, ...
Tanderup Kari K Department of Radiation Oncology, Washington University School of Medicine, St. Louis, MO; Department of Oncology, Aarhus University Hospital, Aarhus, Denmark. Electronic address: - - 2014
The application of magnetic resonance image (MRI)-guided brachytherapy has demonstrated significant growth during the past 2 decades. Clinical improvements in cervix cancer outcomes have been linked to the application of repeated MRI for identification of residual tumor volumes during radiotherapy. This has changed clinical practice in the direction of individualized ...
Zhou Shengyuan - - 2014
Currently used small molecular magnetic resonance (MR) imaging contrast agents (CAs) in clinics have relatively short half-life, which limited the acquisition of high-resolution organs and angiographic images. Therefore, development of the facile strategy for the synthesis of long-circulating CAs with the transforming potential for MR imaging still remains a great ...
Okur Aylin A From the Departments of *Radiology, †Neurosurgery, and ‡Pathology, Faculty of Medicine, Ataturk University, Erzurum, - - 2014
Alveolar echinococcosis (AE) is a parasitic infestation produced by Echinococcus multilocularis. The parasite is a rare human infestation with a wide geographic distribution. It primarily affects the liver, and may spread hematogenously to produce metastatic foci in the distant organs. AE can metastise to the lungs, brain and bones. Cerebral ...
Onal Sinan - - 2014
Pelvic organ prolapse (POP) is a major women's health problem. Its diagnosis through magnetic resonance imaging (MRI) has become popular due to current inaccuracies of clinical examination. The diagnosis of POP on MRI consists of identifying reference points on pelvic bone structures for measurement and evaluation. However, it is currently ...
Zhang Hai-Bo HB From the *Institute of Neurosurgery, Chinese PLA General Hospital; and †Department of Neurosurgery, Beijing Sanbo Brain Hospital, Capital Medical University, Beijing, - - 2014
Papillary meningioma is an uncommon meningioma subtype of World Health Organization grade III. It could show some radiologic profiles pointing to malignant behavior, such as a cystic change, a heterogeneous enhancement, and an ill- defined border. However, to date, the radiologic profile described in this article has not been reported ...
Pang Jincheng - - 2014
Active contour techniques have been widely employed for medical image segmentation. Significant effort has been focused on the use of training data to build prior statistical models applicable specifically to problems where the objects of interest are embedded in cluttered background. Usually the training data consists of whole shapes of ...
Wong Ka Kit KK Nuclear Medicine/Radiology Department, University of Michigan Hospital, Ann Arbor, MI 48109, - - 2014
Nuclear medicine imaging of endocrine disorders takes advantage of unique cellular properties of endocrine organs and tissues that can be depicted by targeted radiopharmaceuticals. Detailed functional maps of bio-distributions of radiopharmaceutical uptake can be displayed in 3D-tomographic formats, using single photon emission computed tomography (SPECT), that can now be directly ...
Rischke H Christian HC Department of Radiation Oncology, University of Freiburg, Hugstetterstr 55, 79106, Freiburg, Germany, - - 2014
(18)F-Fluoroethylcholine ((18)F-FECh) is excreted via the urinary system with high activity accumulation in the urinary bladder. Furosemide and oral hydration can be administered concomitantly to reduce urinary activity to provide better detectability of retroperitoneal and pelvic lesions. Currently it is unknown if there is any effect of furosemide on (18)F-FECh ...
Fukuda Shinsuke - - 2014
Osteoid osteoma is a benign tumor that usually occurs in the long bones of young adults. Its symptoms can be diverse depending on the location of the tumor and especially difficult to diagnose when occurring in an atypical location. Osteoid osteoma arising in the sacrum is extremely rare, and here, ...
Aguirre-Pascual Elisa E Department of Radiology, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, - - 2014
The sonographic (US) features of limb-body wall complex have been well documented; however the literature regarding the findings on MRI in limb-body wall complex is scant. To characterize the prenatal MRI features of limb-body wall complex. We performed a retrospective review of all MRI scans of fetuses diagnosed with limb-body ...
Akyüz Sükrü S Department of Cardiology, Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital; ─░stanbul-Turkey. - - 2014
A 29-year old male patient presented with a hemodynamically significant ventricular tachycardia. Despite a comprehensive examination, the correct diagnosis was unfortunately established after two years. We discuss why the correct diagnosis was initially overlooked in physical examination, electrocardiogram, echocardiography and cardiac magnetic resonance imaging, and which findings led the cardiologists ...
Velikyan Irina I Department of Medicinal Chemistry, Preclinical PET Platform, Uppsala University, SE-75183 Uppsala, Sweden. Electronic address: - - 2014
Fibrosis affecting functionality of vital organs such as liver, lung, heart, and kidney, is involved in many chronic diseases. Positron emission tomography (PET) would not only provide precise localization and extent of the affected tissue but also allow the accurate quantification of the fibrotic process for the subsequent prognosis. A ...
Masciocchi Carlo C Dipartimento di Scienze Cliniche Applicate e Biotecnologiche Ospedale San Salvatore, L'Aquila, University of L'Aquila, Via Vetoio, Coppito, 67010, L'Aquila, - - 2014
Magnetic resonance-guided focused ultrasound surgery (MRgFUS) is a totally noninvasive ablation technique that in the last years had an important development in a large number of applications: in particular gynaecological disorders, bone lesions, prostate, breast, brain and other organs. This review of MRgFUS is focused on the technical aspects and ...
Nakaura T T Diagnostic Radiology, Amakusa Medical Center, Kameba 854-1, Amakusa, Kumamoto 863-0046, Japan; Department of Diagnostic Radiology, Graduate School of Medical, Kumamoto University, Japan. Electronic address: - - 2014
To evaluate the radiation dose, image quality, and influence on visual contrast of low tube voltage abdominal computed tomography (CT) and the effects of display setting optimization. One hundred and fifty-seven patients were randomly assigned to one of three protocols. Fifty-two patients underwent a 120 kVp protocol, and 53 and 52 ...
Sarrut David D Université de Lyon, CREATIS; CNRS UMR5220; Inserm U1044, INSA-Lyon; Université Lyon 1, F-69621 Lyon, France and Léon Bérard Cancer Center, Université de Lyon, F-69373 Lyon, - - 2014
To automatically learn directional relative positions (DRP) between mediastinal lymph node stations and anatomical organs. Those spatial relationships are used to semiautomatically segment the stations in thoracic CT images. Fuzzy maps of DRP were automatically extracted by a learning procedure from a database composed of images with stations and anatomical ...
Sharma Kriti Sen KS Department of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia - - 2014
The size of field-of-view (FOV) of a microcomputed tomography (CT) system can be increased by offsetting the detector. The increased FOV is beneficial in many applications. All prior investigations, however, have been focused to the case in which the increased FOV after offset-detector acquisition can cover the transaxial extent of ...
Wang Xiao-chun XC Department of Radiology, First Clinical Medical College, Shanxi Medical University, Taiyuan, - - 2014
To assess the value of combining susceptibility-weighted imaging (SWI) and dynamic susceptibility weighted contrast-enhanced (DSC) perfusion-weighted MRI (PWI) in assessing World Health Organization (WHO)grade for brain astrocytoma . A total of 94 patients with pathologically confirmed astrocytomas underwent SWI and DSC scans. The evaluation included intratumoral susceptibility signal intensity (ITSS) ...
Schimmöller L L Department of Diagnostic and Interventional Radiology, University of Dusseldorf, Medical Faculty, Dusseldorf, - - 2014
To evaluate the influence of attenuation-based tube potential selection (ATPS) in combination with organ-specific dose reduction (OSDR) on radiation dose and image quality of contrast-enhanced chest computed tomography (CT) examinations. Seventy consecutive patients (59.2 ± 16.1 years; 49 men; 21 women) were randomized into two groups and underwent contrast-enhanced chest CT using ...
Weber Wolfgang A WA Molecular Imaging and Therapy Service, Memorial Sloan Kettering Cancer Center, New York, New - - 2014
Despite considerable excitement about the potential of PET/MR imaging for the detection, staging, and functional characterization of cancer, this new technology is evolving significantly more slowly than PET/CT. This slower evolution is due partly to ongoing technologic challenges (e.g., accurate attenuation correction of PET images) but also to the complex ...
Yamauchi-Kawaura C C Department of Radiological Sciences, Graduate School of Medicine, Nagoya University, 1-1-20 Daikominami, Higashi-ku, Nagoya 461-8673, - - 2014
In this study, the authors developed age-specific physical head phantoms simulating the physique of Japanese children for dose evaluation in paediatric head computed tomography (CT) examinations. Anatomical structures at 99 places in 0-, 0.5-, 1- and 3-y-old Japanese patients were measured using DICOM viewer software from CT images, and the ...
Buch-Olsen Karen M KM Department of Nuclear Medicine, Odense University Hospital, Odense, - - 2014
Fever of unknown origin continues to be a diagnostic challenge for clinicians. The aim of this study was to confirm whether F-fluorodeoxyglucose (F-FDG)-PET/computed tomography (CT) is a helpful tool in patients suffering from this condition. Fifty-seven patients with fever of unknown origin were examined with F-FDG-PET/CT as part of their ...
Exacoustos Caterina C Department of Biomedicine and Prevention Obstetrics and Gynecological Clinic, University of Rome 'Tor Vergata', Italy. Electronic address: - - 2014
Endometriosis affects between 5 and 45% of women in reproductive age, is associated with significant morbidity, and constitutes a major public health concern. The correct diagnosis is fundamental in defining the best treatment strategy for endometriosis. Therefore, non-invasive methods are required to obtain accurate diagnoses of the location and extent ...
Braun Department of Farm Animals, Vetsuisse Faculty, University of - - 2014
Computed tomography (CT) findings of the liver, spleen and intestines of five healthy calves during six examinations in the first 105 days of life were compared with corresponding cadaver slices. The liver was located in the right hemiabdomen adjacent to the diaphragm and right abdominal wall. The caudal vena cava ...
Arif-Tiwari Hina H From the Departments of Medical Imaging University of Arizona College of Medicine, Tucson, Arizona, USA. - - 2014
Hepatocellular carcinoma (HCC) is one of the most common cancers worldwide, and liver transplantation is the optimal treatment for selected patients with HCC and chronic liver disease (CLD). Accurate selection of patients for transplantation is essential to maximize patient outcomes and ensure optimized allocation of donor organs. Magnetic resonance imaging ...
Shapiro Mikhail G MG 1] Miller Research Institute, University of California, Berkeley, Berkeley, California 94720, USA [2] Department of Bioengineering, University of California, Berkeley, Berkeley, California 94720, USA [3] Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California 94720, USA [4] Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, - - 2014
Magnetic resonance imaging (MRI) enables high-resolution non-invasive observation of the anatomy and function of intact organisms. However, previous MRI reporters of key biological processes tied to gene expression have been limited by the inherently low molecular sensitivity of conventional (1)H MRI. This limitation could be overcome through the use of ...
Zhang Jingjing J Department of Nuclear Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, No. 1 Shuaifuyuan, Wangfujing Street, Dongcheng District, Beijing, 100730, - - 2014
IgG4-related disease (IgG4-RD) is an increasingly recognized clinicopathological disorder with immune-mediated inflammatory lesions mimicking malignancies. A cohort study was prospectively designed to investigate the value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) in characterizing IgG4-RD. Thirty-five patients diagnosed with IgG4-RD according to the consensus criteria were enrolled with informed ...
Chen Xiaoyan X Department of Neurology, Chinese PLA General Hospital, Beijing, - - 2014
We described a 38-year-old woman of rapidly progressive dementia with white matter encephalopathy and death. She had Addison's disease but the adrenal glands were hyperplastic. Brain magnetic resonance imaging revealed diffuse white matter lesion predominantly in the frontal lobe with band-like contrast enhancement. l-Methyl-11C-methionine positron emission tomography revealed accumulation of ...
Dalah Entesar E Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, - - 2014
To explore the potential of multimodality imaging (dynamic contrast-enhanced magnetic resonance imaging [DCE-MRI], apparent diffusion-coefficient diffusion-weighted imaging [ADC-DWI], fluorodeoxyglucose positron emission tomography [FDG-PET], and computed tomography) to define the gross tumor volume (GTV) and organs at risk in radiation therapy planning for pancreatic cancer. Delineated volumetric changes of DCE-MRI, ADC-DWI, ...
Meulepas Johanna M JM Department of Epidemiology and Biostatistics, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The - - 2014
Computed tomography (CT) scans are indispensable in modern medicine; however, the spectacular rise in global use coupled with relatively high doses of ionizing radiation per examination have raised radiation protection concerns. Children are of particular concern because they are more sensitive to radiation-induced cancer compared with adults and have a ...
Frias Antonio E AE Division of Diabetes, Obesity and Metabolism, Oregon National Primate Research Center, Beaverton, Oregon, USA; Division of Developmental and Reproductive Sciences, Oregon National Primate Research Center, Beaverton, Oregon, USA; Department of Obstetrics and Gynecology, Oregon National Primate Research Center, Beaverton, Oregon, - - 2014
The maternal microvasculature of the primate placenta is organized into 10-20 perfusion domains that are functionally optimized to facilitate nutrient exchange to support fetal growth. This study describes a dynamic contrast-enhanced magnetic resonance imaging method for identifying vascular domains and quantifying maternal blood flow in them. A rhesus macaque on ...
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